Brake-shoe.



. vbrake-shoes, and more particularly to' th'ose ing qualities.

. inthe shoe necessarily weakens' the same and i. tured should the key-bolt become loosened gitudinaIseCtiOnal view taken on the line 2 2 UNITEB STAESATENT OFFICE.

JAMES S. THOMPSON, OF CHICAGO, ILLlNOIS, ASSIGNOR TO DWARD H. FALLOVVS, TRUSTEE, OF NEW YORK, N. Y.

BRAKE-SHOE.

Specication of Letters Patent.

Patented Dec. 11, 1906.

To all whom, it ifm/y concern.:

Beit known that I, JAMES S. THOMPSON, a citizen of the United States, and a resident of Chicago, in thecounty of Cook and State of Illinois, have made and invented certain new and useful Improvements in Brake-Shoes, of which the following is a speciiicati'on.

My invention relates to an improvement in adapted for use upon locomotives and railway-cars and generally made of cast-iron, the object being to produce a shoe of this type or character which if broken in use the parts will still be held or bound together.

In my present invention the bindin means consists of a rod, strap, or wire so ent or shaped as to form at one end an attaching, hook or lug for the brake-head and at the opposite end a reinforcement for the metal surrounding the hole or opening formed in the shoe for the passage of the key-bolt, the bent rod taking the strain of said bolt and preventing the latter from coming in contact with thel cast-iron part of the shoe and cracking or breaking the shoe at that point, as is liable to occur when the bolt is allowed to im inge on the cast-iron or wearing body of the shoe, the extreme end or ends ofthe bent rod, if desired, forming an end stop for the brake-head.

With these and other ends in view the invention consists in certain novel features of construction and combinations of parts, as will be hereinafter fully described, and pointed out in the claims.

In the accompanying drawings, Figure ll is a top plan view -of a shoe constructed in accordance with my invention. Fig. 2 is a lon-.

of Fig. 1. Fi 3 `is a cross-sectional view taken on the line 3 3 of Fig. 2. Figs. 4, 5, and 6 are views of modified-forms of the invention.

Referring to the drawings, A represents a shoe of ordinary construction and formed of cast-iron or, if desired, of relatively hard and soft metals, as is frequently the case in order to obtain increased frictional and wear- In the bod)T of the shoe is formed an opening B for the passage of a keybolt, (not shown,) whereby to attach a brakehead. The formation of this hole or opening' renders the shoe liable to bel broken' or fracbut,

and allowed to jar or vibrate therein. -In order torelieve the cast metal surrounding this opening of the strain of the bolt and prevent the impin ement of the latter directly. on the cast-iron,gl reinforce 'the same. with a rod or wire C, formed of wrought, ductile, or other tough metal and so bent or formed as to partially or entirely surround the opening, this rod or wire being located at or adjacent to the back of the shoe. As illustrated in Figs. 1,

, 2, -and 3, the'rod C is formed at one endwith the loop D, bent or shaped! to form a hook to engage with` the brake-head, for the urpose of assisting .in seeming thelatter to t e shoe,

the rod. at the 'opposite'end bein bent-partially around the opening B, and t e portions of the rod after crossing each other are bent upwardly, as illustrated in Fig. 2, to form the end stop E. vInstead of crossing the wire or rod on the outer side of the opening B the same may becrossed in front of said opening,

vas illustrated in Fig. 4, therod or wire C in such instance being also continued beyond the opening and bent to project up through the metal of the shoe and form the end stop E. Again, as illustrated in Figf 5, the rod or wire C may be crossed both in front and to the rear of the opening B, in which instance said bolt-opening will be entirely surrounded and reinforced by the bent rod. Again, as illustrated in Fig. 6, the wire or rod maybe continuous and passed around the bolt-opening B and forming at its/opposite end the attaching-hook D. parent without further description and illustrationthat the rod or wire C may be bent in various ways in order to accomplish the same object-that is, -to form at one end of the shoe an attaching-hook, reinforce the metal surrounding the opening lfor the key-bolt,

and, if desired, a't the opposite end to form an end stop, and hence I do not limit my invention to the exact details shown and described Having fully described my invention, what I claim as new, and desire to secure by Letters Patent is- 1 A brake-shoe formed with a bolt-opening inthe body thereof and having a rod'located at or adjacent to the back thereof, said rod being bent at one end .to form an attachinghook and at its opposite end to reinforceI themetal surrounding said boltopening, substantially as described.

It will of course be ap- IOO 2. i brake-shoe formed With a, bolt-opening through the body thereof and having e.v

rod located at or adjacent to thev back thereof, said rod being bent at one end to form a. 5 hook, and at its opposite end to form an end stop, Said rod reinforcing the metal around the bolt-opening, substantially as described. 3. A brake-.shoe formed with a boltfopening through the body thereof, and provided With a rod et or adjacent to the back thereof, said rod being bent to form an 4end stop andA reinforce the metalaround saidboltfopening, substantially as described. v

4". 'A brake-.shoe formed Withfam opening x 5 through the body Jthereof, and; hmvng a rod -metal around' said bolt-opening, the extreme located at or adjacent to the backA thereof, said rod being bent'et one' end to form en at' tachingA-hook, and v et the opposite 'end crossed, whereby the seme reinforces the 2O ends thereof forming en end stop, substenn tially as described. i i A Si ed et Chicago, in the county of Cook Iand' tate of Illinois, this 30th dyofMarch,

A. D 1'9061 I JAMES s.1THoMPSoN.

Witnesses: r a

GEO; D; C me@ 4 4 WmTcoMze'., 

